Estimation of TETRA radio use in the Airwave Health Monitoring Study of the British police forces

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Title: Estimation of TETRA radio use in the Airwave Health Monitoring Study of the British police forces
Authors: Vergnaud, A-C
Aresu, M
Kongsgård, HW
McRobie, D
Singh, D
Spear, J
Heard, A
Gao, H
Carpenter, JR
Elliott, P
Item Type: Journal Article
Abstract: BACKGROUND: The Airwave Health Monitoring Study aims to investigate the possible long-term health effects of Terrestrial Trunked Radio (TETRA) use among the police forces in Great Britain. Here, we investigate whether objective data from the network operator could be used to correct for misreporting in self-reported data and expand the radio usage availability in our cohort. METHODS: We estimated average monthly usage of personal radio in the 12 months prior to enrolment from a missing value imputation model and evaluated its performance against objective and self-reported data. Factors associated with TETRA radio usage variables were investigated using Chi-square tests and analysis of variance. RESULTS: The imputed data were better correlated with objective than self-reported usage (Spearman correlation coefficient = 0.72 vs. 0. 52 and kappa 0.56 [95% confidence interval 0.55, 0.56] vs. 0.46 [0.45, 0.47]), although the imputation model tended to under-estimate use for higher users. Participants with higher personal radio usage were more likely to be younger, men vs. women and officer vs. staff. The median average monthly usage level for the entire cohort was estimated to be 29.3 min (95% CI: [7.2, 66.6]). CONCLUSION: The availability of objective personal radio records for a large proportion of users allowed us to develop a robust imputation model and hence obtain personal radio usage estimates for ~50,000 participants. This substantially reduced exposure misclassification compared to using self-reported data and will allow us to carry out analyses of TETRA usage for the entire cohort in future work.
Issue Date: 9-Jul-2018
Date of Acceptance: 7-Jul-2018
URI: http://hdl.handle.net/10044/1/62102
DOI: https://dx.doi.org/10.1016/j.envres.2018.07.015
ISSN: 0013-9351
Publisher: Elsevier
Start Page: 169
End Page: 174
Journal / Book Title: Environmental Research
Volume: 167
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Medical Research Council (MRC)
Medical Research Council (MRC)
Medical Research Council (MRC)
National Institute for Health Research
Imperial College Healthcare NHS Trust- BRC Funding
UK DRI Ltd
Funder's Grant Number: MR/L01632X/1
MR/L01632X/1
MR/L01341X/1
RTJ6219303-1
RDF03
N/A
Keywords: Occupational cohort
Occupational exposure
Radiofrequency electromagnetic fields
TETRA
03 Chemical Sciences
05 Environmental Sciences
06 Biological Sciences
Toxicology
Publication Status: Published
Conference Place: Netherlands
Online Publication Date: 2018-07-09
Appears in Collections:Faculty of Medicine
Epidemiology, Public Health and Primary Care



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